Accession Number : ADA321138

Title :   Test of a Mock Theft Scenario for Use in the Psychophysiological Detection of Deception: III.

Descriptive Note : Final rept. Jul-Oct 96,

Corporate Author : DEPARTMENT OF DEFENSE POLYGRAPH INST FORT MCCLELLAN AL

Personal Author(s) : Ingram, Eben M.

PDF Url : ADA321138

Report Date : OCT 1996

Pagination or Media Count : 31

Abstract : The Zone Comparison Test (ZCT), a psychophysiological detection of deception (PDD) test, was administered to 30 healthy male and female paid volunteers recruited by a local employment agency. The subjects were programmed to be either deceptive or non-deceptive regarding the mock theft of a valuable coin. This pilot study was designed to determine the effectiveness of the coin theft as a mock crime scenario for laboratory tests when a live pretest is used with the ZCT, with videotaped instructions, and with the digitized voice presentation of test questions. PDD tests were blind-evaluated by three independent scorers using the three position scale, scoring method. The frequencies of accurate determinations made were compared using proportionality tests. The overall accuracy rate was 6O% when inconclusive examiner decisions were included. When inconclusive examiner decisions were excluded the overall accuracy rate increased to 87%. A significant interrater agreement among the blind scorers was found using the kappa statistic for multiple raters (p < .05). However, a proportionality test indicated that the level of unanimous agreement was not significantly different from a chance level (p > .05). It was concluded that this mock scenario did not meet the accuracy requirements for a standard scenario.

Descriptors :   *SCENARIOS, *LABORATORY TESTS, *DETECTION, *DECEPTION, *PSYCHOPHYSIOLOGY, *THEFT, *LIE DETECTORS, TEST AND EVALUATION, REQUIREMENTS, COMPARISON, VOLUNTEERS, RATES, ACCURACY, INSTRUCTIONS, PILOT STUDIES, SCORING.

Subject Categories : Administration and Management
      Sociology and Law
      Psychology
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE